A standard Proctor test was conducted on a silty clay soil collected from a proposed construction site. The results are shown in the following table. Moisture content (%) Trial no. Mass of moist soil in the mold (g) 1 1689 12.7 2 1752 15.0 1800 17.8 4 1845 20.6 5 1844 23.8 a. Determine the maximum dry density (kg/m³) of compaction and the op- timum moisture content. Given: Mold volume = 943.3 cm³. b. If specification calls for 99% relative compaction in the field, what w be the field dry density and the range of acceptable moisture content?

A 1972 kg/mᶟ wet unit weight and 5.5% average actual moisture content were obtained from a laboratory data during the conduct of FDT on an aggregate base coarse materials, what is the dry unit weight of the soil? From the above laboratory data and the obtained dry unit weight of soil, What will be the degree of compaction of the compacted materials when a 1960 kg/mᶟ maximum dry density is used as a reference Laboratory compaction data?

A sample of the soil tested in triaxial with dimensions of 38 mm diameter and 76 mm height, its weight afterthe test was 205.1 g and after drying in an oven the weight was 175.6 g, determine the moisture content,bulk and dry densities and unit weights. 1- Analyse the results of liquid limit, plastic limit and plasticity indices determined  2- What is the importance of specific gravity, in the given examples?

A fine-grained soil has 60% clay with LL 220%, PL 545%, and a natural water content of 6%. A standard Proctor test was carried out in the laboratory and the following data were recorded Diameter of mold = 101.40 mmHeight of mold = 116.70 mmMass of mold = 4196.50 gram Specific gravity, Gs = 2.69 a) Determine the maximum dry unit weight and optimum water content.b) If the desired compaction in the field is 95% of the standard Proctor test results, what values of dry unit weight and water content would you specify?c) Explain why you select these values.d) What field equipment would you specify to compact the soil in the field, and why?e) How would you check that the specified dry unit weight and water content are achieved in the field?

Refer to the soil in Problem 4.5. Using the Casagrande plasticity chart, graphically estimate the shrinkage limit of the soil as shown in Figure 4.22. 4.5 The following data were obtained by conducting liquid limit and plastic limit tests on a soil collected from the site. Liquid limit tests: Plastic limit test: PL = 19.3% a. Draw the flow curve and determine the liquid limit. b. Using the Casagrande plasticity chart (Figure 4.21), determine the soil type.

A modified Proctor compaction test was carried out using a cylindrical moldwith a 1000 ml volume. Table 2 summarizes the results.a. Plot the compaction and ZAV curves (RD=2.75 and ρwater=1000 kg/m3).b. Determine the maximum dry density and the optimum moisture content.

A fine-grained soil has 60% clay with LL 220%, PL 545%, and a natural water content of 6%. A standard Proctor test was carried out in the laboratory and the following data were recorded   Diameter of mold = 101.40 mmHeight of mold =    116.70 mmMass of mold     = 4196.50 gram  Specific gravity, Gs = 2.69       Determine the maximum dry unit weight and optimum water content. If the desired compaction in the field is 95% of the standard Proctor test results, what values of dry unit weight and water content would you specify? Explain why you select these values. What field equipment would you specify to compact the soil in the field, and why? How would you check that the specified dry unit weight and water content are achieved in the field?

arrow_forward   Question A fine-grained soil has 60% clay with LL 220%, PL 545%, and a natural water content of 6%. A standard Proctor test was carried out in the laboratory and the following data were recorded Diameter of mold = 101.40 mmHeight of mold = 116.70 mmMass of mold = 4196.50 gramSpecific gravity, Gs = 2.69 a) Determine the maximum dry unit weight and optimum water content.b) If the desired compaction in the field is 95% of the standard Proctor test results, what values of dry unit weight and water content would you specify?c) Explain why you select these values.d) What field equipment would you specify to compact the soil in the field, and why?e) How would you check that the specified dry unit weight and water content are achieved in the field?   I Need The Answer of part (d) and (e)...

You are checking a field-compacted layer of soil. The laboratory control curve has the following values:   gd (kN/m3) w (%) 16.34 14 16.57 16 16.65 18 16.50 20 16.26 22 15.87 24   The specification for compaction states that the field-compacted soil must be at least 95% of the maximum control density and within of the optimum moisture for the control curve. You dig a hole 1m3 in the compacted layer and extract a sample that weighs 17.2 kN wet and 14.1 kN dry. (a) What is the compacted gd? The compaction w? The percent compaction? Does the sample meet the specifications? (b) If the specific gravity is 2.68, what is the compacted degree of saturation? If the sample were saturated at constant density, what would be the water content?

A field unit determination test for the soil, yielded the following data. Moisture content = 12% and moist unit weight = 106 lb/cu.ft. Determine the relative compaction.